how to use the contains function from the underscore library in javascript

To use the contains function from the underscore library in JavaScript, you first need to include the underscore library in your project. Once you have done that, you can use the contains function to check if a value exists in an array.

Here's an example:

index.tsx
// Add the underscore library to your project
const _ = require('underscore');

// Define an array
const myArray = [1, 2, 3, 4, 5];

// Use the contains function to check if a value exists in the array
if (_.contains(myArray, 3)) {
  console.log('The array contains the value 3');
} else {
  console.log('The array does not contain the value 3');
}
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In this example, we first include the underscore library using the require statement. We then define an array called myArray. We use the contains function to check if the value 3 exists in the array. If it does, we log a message saying that the array contains the value 3. If it doesn't, we log a message saying that the array does not contain the value 3.